SYD - PHL

$1,171 Find Cheap Flights from Sydney to Philadelphia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sydney to Philadelphia departing on 9/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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KAYAK searches hundreds of travel sites at once for deals on flights to Philadelphia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sydney to Philadelphia.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sydney to Philadelphia.
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Cheap Flight Deals from Sydney to Philadelphia (SYD-PHL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Sydney to Philadelphia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from Sydney to Philadelphia

KAYAK's recommended return flight deals from the most popular airlines that fly from Sydney to Philadelphia.
Discover the best prices for you by selecting your travel dates on KAYAK.
American Airlines Logo
09:10 - 17:43SYD-PHL
22h 33m2 stops
American Airlines Logo
17:21 - 07:05PHL-SYD
23h 44m2 stops
$1,986American Airlines
Find Deal
Sun, 1 Jun - Sat, 21 Jun
Air Canada Logo
10:20 - 14:38SYD-PHL
43h 18m2 stops
Air Canada Logo
15:30 - 08:35PHL-SYD
26h 05m2 stops
$2,063Air Canada
Find Deal
Sat, 11 Oct - Sat, 1 Nov
Air Canada Logo
10:20 - 14:38SYD-PHL
43h 18m2 stops
Air Canada Logo
10:00 - 08:35PHL-SYD
31h 35m2 stops
$2,069Air Canada
Find Deal
Wed, 8 Oct - Sat, 1 Nov
United Airlines Logo
11:20 - 17:28SYD-PHL
21h 08m1 stop
United Airlines Logo
05:00 - 08:15PHL-SYD
35h 15m1 stop
$2,122United Airlines
Find Deal
Sat, 11 Oct - Sun, 2 Nov
Delta Logo
09:25 - 08:34SYD-PHL
37h 09m2 stops
Delta Logo
06:00 - 06:35PHL-SYD
34h 35m2 stops
$2,326Delta
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Fri, 27 Jun - Thu, 17 Jul
 Logo
20:45 - 06:30SYD-PHL
47h 45m2 stops
 Logo
07:45 - 07:30PHL-SYD
33h 45m1 stop
$2,462
Find Deal
Tue, 13 May - Fri, 16 May
 Logo
13:15 - 05:55SYD-PHL
30h 40m3 stops
 Logo
09:45 - 07:20PHL-SYD
55h 35m2 stops
$2,575
Find Deal
Tue, 13 May - Fri, 16 May
United Airlines Logo
10:20 - 10:47SYD-PHL
38h 27m2 stops
United Airlines Logo
18:28 - 06:55PHL-SYD
22h 27m1 stop
$2,710United Airlines
Find Deal
Fri, 27 Jun - Thu, 17 Jul
Qantas Airways Logo
09:10 - 19:56SYD-PHL
24h 46m1 stop
Qantas Airways Logo
15:49 - 07:05PHL-SYD
25h 16m1 stop
$2,834Qantas Airways
Find Deal
Tue, 10 Jun - Sat, 28 Jun
Qantas Airways Logo
10:10 - 07:00SYD-PHL
35h 50m1 stop
Qantas Airways Logo
18:35 - 06:55PHL-SYD
45h 20m1 stop
$2,898Qantas Airways
Find Deal
Wed, 8 Oct - Sat, 1 Nov
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KAYAK's insights & trends for Sydney to Philadelphia flights

Get data-powered insights and trends into flights from Sydney to Philadelphia to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Sydney to Philadelphia?

The average price of all round-trip flights from Sydney to Philadelphia clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Sydney to Philadelphia, look for departures on Thursdays and avoid leaving on a Tuesday, as it's usually the priciest day. When flying back from Philadelphia, Tuesday is the cheapest day to fly and Wednesday is the most expensive.

What is the cheapest month to fly from Sydney to Philadelphia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sydney to Philadelphia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Sydney to Philadelphia is February, where tickets cost $1,224 (return) on average. On the other hand, the most expensive months are December and September, where the average cost of round-trip tickets is $3,132 and $2,529 respectively.

How far in advance should I book a flight from Sydney to Philadelphia?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Sydney to Philadelphia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below average price on the flight from Sydney to Philadelphia, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

Good to know

Low season

January

High season

June

Cheapest flight

$1,171
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly (11% more expensive on average)
Flight from Sydney to Philadelphia

When to book flights from Sydney to Philadelphia

Are your dates flexible? Find out the best times to travel from Sydney to Philadelphia based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Sydney to Philadelphia

  • What is the cheapest flight from Sydney to Philadelphia?

    In the last 3 days, the lowest price for a flight from Sydney to Philadelphia was $750 for a one-way ticket and $1,272 for a return.

  • Which aircraft models fly most regularly from Sydney to Philadelphia?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Sydney to Philadelphia?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Sydney and Philadelphia, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Sydney to Philadelphia, Delta or Qantas Airways?

    The two airlines most popular with KAYAK users for flights from Sydney to Philadelphia are Delta and Qantas Airways. With an average price for the route of $1,224 and an overall rating of 8.0, Delta is the most popular choice. Qantas Airways is also a great choice for the route, with an average price of $2,786 and an overall rating of 7.5.

  • How does KAYAK find such low prices on flights from Sydney to Philadelphia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sydney to Philadelphia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sydney to Philadelphia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Philadelphia from Sydney is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sydney to Philadelphia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Philadelphia with an airline and back to Sydney with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sydney to Philadelphia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Philadelphia from Sydney up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top 5 airlines serving from Sydney to Philadelphia

 
See real verified KAYAK customer reviews for airlines flying from Sydney to Philadelphia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sydney to Philadelphia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 7929 reviews
7.9Entertainment
7.9Comfort
8.5Crew
8.2Boarding
7.3Food
Airline reviews

Fine except the person next to me took up her seat had raised the arm divide so she spilled into my seat. because of her size. Fortunately no one was in the seat on my right so I could use part of it.

10.0 ExcellentAnonymous, Apr 2025AMS - ATL
Read more Delta reviews

Fine except the person next to me took up her seat had raised the arm divide so she spilled into my seat. because of her size. Fortunately no one was in the seat on my right so I could use part of it.

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

Delta is a cut above the others in customer service.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

Pretty excellent. I don’t know what the pilot could have done better with the bumping ( there was a storm) nor what happened to my ears coming down into bendigo. It doesn’t happen coming down into Sydney just the return flight. I wonder why?

Touch screens were very difficult to use, generally being laggy and unresponsive- it was quite an art to get it to play the thing you wanted rather than some thing at random. Selection of films and Tv was good when touchscreen decided to finally respond.

Their aircraft are old and amenities lack way behind other international carriers leaving from BNE. Even in economy

Airport and crew experience was excellent. We had to queue for the runway - no one’s fault, but it did mean we were 30 minutes late leaving

Overall good experience with flight and airport wheelchair staff. Also got Indian food in the flights

Friendly staff, surprisingly good premium economy seats allowing good sleep/ snooze opportunity and very good menu.

Very good as always, stand out airline. The passengers whom choose to stuff baggage that otherwise should be checked-in is a real bother but that's not the airlines doing. A real frustration that passengers just don't want to check-in luggage. This is a pet hate unfortunately.

It’s a two prop flight so I had problems with my ears on re- entering ! But otherwise fine

I love flying with Qantas. There was no onscreen entertaining on this flight, and only a snack provided (not a meal) but still better than Jetstar or Virgin (in my opinion) so still happy.

Complaint is with American Airlines which delayed our flight from salt lake to Dallas reaulting in us missing our connection to Brisbane. Had to spend 24 hours in Dallas to wait for the next flight. Awful experience and ruined my wife’s birthday.

Our flights got changed from United to Air Canada and our purchased seats did not get transferred so we had to pay for seats twice. I brought it up with Air Canada and they stated I had to go back and chase it with United. The united seats were $21 Canadian each and Air Canada were $56 each so we have paid $77 for each seat. Very unhappy

A bit rush for transit. Food and entertainment are not available

So far so good but food and entertainment are not available for this flight

Multiple delays and not straight answer from the United team

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

Wonderful as usual except for other guests that were unruly and not kept in check by the Crew.

This was an overnight flight. There was no meal service in first class, just a simple snack basket was offered along with beverages. There should have been some type of continental breakfast prior to arrival in PHL. As an Executive Platinum American Airlines Advantage member, I received no name recognition from the first class flight attendant. When disembarking at PHL, the flight attendants were more interested in their cell phones than saying "thank you" to the passengers as they disembarked.

the pilot that landed this flight in Philadelphia did an amazing job, the weather was absolutely terrible and we landed safely.

The flight was just perfect! We left a few minutes early, had a smooth flight and fortunately had landed before the terrible accident that took off from North Philadelphia airport shortly thereafter.

Timely boarding process, made up for lost time even after a lengthy wait for de-icing

My seat was wonky...hard and not much padding. I sat next to the Jumpseat for the flight attendant. Thoroughly enjoyed not have a third seat in that row! Flight attendants were amazing. I couldn't answer the "food quality" question as there is no food served on my short flight. I commend the pilot as I know it was super gusty when we landed. Thanks

I think I paid for an extra legroom seat and to be honest, there was not a lot of space available for my not very long legs. The flight was totally full and the staff did everything possible to meet the needs of all passengers. My only concern was for the size and spacing of my seat.

Flight was on time Crew was not. very friendly I paid for premium class and It wasn’t too much different from coach

I chatted with the captain before the flight, and similarly during the welcome announcement, he warned of a turbulent flight that may impact the in-flight service. However, once at altitude, he announced that the weather changed and he immediately turned off the seatbelt sign. But it appeared the cabin crew had already decided to take off this flight. They remained seated and then just chatted in the galley. The flight was fully catered, but only first class received service.

My flight attendant was attentive! The elderly person next to me was flatulent and the flight attendant could see that I was in distress and brought me some face masks

My flight got delayed 5 times and then got cancelled eventually, I had to get a hotel and uber and pay for food for an extra night without any plans. It was a horrible experience, instead of Air Canada, I was flying with United .

I had a nice flight with free wifi. So I was able to message family members and stream music during my flight, which made the trip go by fast. I also enjoyed flying on there Airbus A220. The plane looked very new and it also got up to speed fast down the runway and didn't need much runway to get airborne.

Short flight so no food or entertainment. Good landing at SFO and on time. We were told no carryon luggage yet lots of people were puting bags in overhead compartments. The rules need to be made more clear. I was on the first leg of an international flight and this is the first time I could not have carryon luggage.

My flight was overbooked and they would not let me board. I had to book another flight and pay the full amount of that flight. I did not get any help at all from Air Canada or United Airlines.

Comfortable seats and movies entertainment available. Better experience than the flight from Toronto to Denver.

Overall good experience. The flight from Toronto to Denver does not have entertainment - movies to watch.

There is not enough space between two chairs and raws.

Everything was made rather simple, so I appreciate that. All the people I dealt with from entering the airport in Jacksonville to my lonnnnnnng walk to my next gate in Chicago were excellent and very helpful.

Crammed in like cattle waited 30 mins for late connecting flight (flight didn’t wait for me for me when I missed my connection at 2 different airports on outward journey)

Terrible. 3 missed flights and 24 hours delayed with lost bag and promised $100 compensation from United and absolutely nothing from them…

Everything you need to know for your flight from Sydney to Philadelphia

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